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August 16th, 2018, ISSUE 235

READING

Akka Http Websocket Example

Akka Http is a module of Akka that provides a full HTTP and Websocket server and client implementation, building on the power of Akka Streams. This means backpressure and resilience transparently out of the box.
Fabio Tiriticco (@ticofab)
Akka HTTP Request and Response models

Up to this point, we have covered how an HTTP request and response can be decomposed into smaller components, and what HTTP ”entity” means.
Richard Imaoka (@richardimaoka)
Composable table updates in Slick

I am going to do a short blog series on how we use Slick: some interesting ways we abstract over patterns I alluded to before, how we work around the bugs we ran into, and some other tips and tricks.
Rahul Goma Phulore (@missingfaktor)
Cask: a Scala HTTP micro-framework

Cask is a simple Scala web framework inspired by Python's Flask project. It aims to bring simplicity, flexibility and ease-of-use to Scala webservers, avoiding cryptic DSLs or complicated asynchrony.
Li Haoyi (@li_haoyi)
Actor Model Explained

An introduction with some extra videos.
Jakub Hruby
Ruminations on the end-to-end argument

I spend a lot of my time reading papers and over the years a couple have always stuck out to me. For this post I wanted to write about an oldie but goodie: Saltzer, Reed, and Clark’s “End-To-End Arguments in System Design.”
Adelbert Chang (@adelbertchang)
First batch of Scala 3 SIPs

There are a quite a few changes in Scala 3, and so we need to find a good strategy to review them all on time before the feature freeze in Scala 3 and its official 3.0.0 release.
Jorge Vicente Cantero (@jvican)
Kinds of types in Scala, part 2: take type, return type or type parameters

In the previous post, we laid the foundation for understanding the type system in Scala. But concrete types only would be too little to make language truly expressive. So, now we’ll try to parametrize it.
Mateusz Kubuszok (@MateuszKubuszok)
Saga, compensate for failures in a terse and composable way

A sage is a slightly altered variant of a Free Monad, allowing defining elegant recovery actions.
Mark De Jong (@mark_dj)
Scala Snacks: Part 1 - Sets are invariantly interesting

This is the first post of a series which will explore some informative nuggets we've come across while building our Scala services here at Football Radar.
Daniel Tattan-Birch (@dan_teebee)
Top Link of July: Can someone explain to me the benefits of IO?

Indeed the hottest discussion last month, definitely worth re-visiting!
Types: Never commit too early - Part 1: The Free Theorems

When coding, we must always follow the principle of the least power.
Stéphane Derosiaux (@sderosiaux)

PRESENTATIONS

Scala Plugin Improvements in IntelliJ IDEA 2018.2

Advanced “Implicit” support, improved patterns autocompletion, Scalafmt as an alternative to the built-in formatter, and Semantic highlighting.
Trisha Gee (@trisha_gee)

EVENTS

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47 degrees (@47deg)
Scala Wave, September 6th - 8th, 2018, Gdańsk, Poland

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Scalac (@scalawavepl)
Scala Italy, September 14th-15th, Florence

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Scala Italy (@ScalaItaly)
LambdAle, London, September 1st

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LambdAle (@lambd_ale)
Win a ticket to Scala Italy!

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Signify Technology (@Signify_Tech)

RELEASES

Console4Cats

Effect-type agnostic Console I/O for Cats Effect.
Gabriel Volpe (@volpegabriel87)

VARIA

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